Sanyo C0971 - Troubleshooting - Handling Failures; Troubleshooting Self-Diagnostics Function Failure

(2) If the self-diagnostics function fails to operate
Check the indoor unit.
Is the fuse blown?
Replace the controller.
Replace the circuit
board or the fuse.
No indicators illuminate and the
indoor fan does not rotate.
Check the power voltage.
Normal
Blown
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